Packing box for garbage trucks



July 3, 1956 G. MILLER PACKING Box FOR GARBAGE Tucxs Filed Mauren 25 4Sheets-Sheet l ATTORNEYS.

July 3 1956 G. MILLER 2,753,057

PACKING BOX FOR GARBAGE TRUCKS Filed March 25, 1954. 4 Sheets-She'et 2'.

BY u l, A

TTGRNEYS.

4 Sheets-Sheet 3 WW www l lll mw G. MILLER PACKING BOX FOR GARBAGETRUCKS 1x a w56 Filed March 25, 1954 INVENTOR ATTORNEYS JMW 'll 1956 G.MILLER 2,753,057

PACKING BOX FOR GARBAGE TRUCKS Filed March 25, 1954 4 Sheets-Sheet 4 27Gonne/5 man@ INVENTOR l l l BY 1 f 1 ATTORNEY/.Q

PACKING BOX FR GAGE TRUCKS Gottlieb Miller, Prosser, Wash.

Application March 25, 1954, Serial No. 418,627

2 Claims. (Cl. 214-2) This invention relates to a garbage packing box orreceptacle and more particularly to a garbage and trash collecting boxto collect, pack and discharge refuse or garbage speedily andefficiently with great ease and controlled automatically by the operatorof the device.

An object of this invention is to provide a garbage packing box of thiskind which may be mounted on a truck or other mobile unit fortransporting the box from one piace to another for collecting the refuseand for transporting the box and refuse therein to a place where therefuse may be emptied from the box.

Another object of this invention is to provide a garbage packing box ofthe kind to be more particularly described hereinafter which ishydraulically actuated for removing the refuse from the box when it isdesired to do so and in a selected area.

Other and further objects and advantages of the invention will behereinafter described and the novel features thereof defined in theappended claims.

ln the drawings:

Fig. l is a side elevation of a truck having a garbage packing boxconstructed according to an embodiment of my invention.

Fig. 2 is a top plan view of the truck and refuse packing box.

Fig. 3 is a longitudinal section of the box removed from the truck.

Fig. 4 is a transverse section taken on the line 4 4 of Fig. 3.

Fig. 5 is a rear elevation, partly broken away and partly in section, ofthe refuse collecting box.

Fig. 6 is a rear elevation of the packing box, partly broken away.

Fig. 7 is a diagrammatic showing of the supply tank, valve, and pusherblade.

Fig. 8 is a side elevation, partly broken away and partly in section ofthe diagrammatic showing in Fig. 7.

Fig. 9 is a diagrammatic View of the cylinder, pump and control valves.

Fig. 10 is an enlarged end elevation of the reversing valve.

Fig. l1 is a side elevation of the reversing valve shown in Fig. 10.

Fig. 12 is a diagrammatic view of the cylinder, piston, pusher blade andblade actuating cables.

Referring more particularly to the drawings the numeral 15 designatesgenerally a refuse collecting and automati cally discharging truckconstructed and arranged according to an embodiment of my invention. Thetruck 15 is used for collecting garbage or other refuse about a city anddischarging such refuse at a selected location where it would becustomary to pile up the refuse and further dispose of it.

The refuse collecting and automatically dumping truck 15 is providedwith a box or body 16 which is securely mounted on the rear end of atruck 17 so that the collecting and discharging truck may be readilymoved from one place to another.

2,753,057 Patented July 3, 1956 The truck body 16 is mounted on the rearend of the truck frame 18 rearwardly of the truck cab 19.

By this disposition of the truck body or box 15 on the truck 17 the body16 is provided with a sliding panel 2t) at the forward end thereof whichmay be opened to receive therethrough the refuse which is placed withinthe body 16 at the time that it is collected. Handles 21 are secured oneach of the sliding panels 2G for the proper manipulation thereof.

Interiorly of the box or body 16 there is provided a movable wall orpusher blade 22 which is movable along the length of the body by thehydraulic means to be hereinafter described. The lower end of the wallor pusher blade 22 is curved rearwardly as clearly noted in the drawingsand designated by thefnumeral 24. ln order to provide for the smooth andproper movement of the pusher blade or wall 22 wheels 25 are rotatablymounted at the lower ends thereof for engagement on the upper surface ofthe bottom of the body 16, the wheels 25 being rotatably carried by awheel bracket 26 which is secured to the lower end of the movable wall22.

The movable wall or pusher blade 22 is moved forwardly of the body 16 bya cable 27 which is secured to the front side of the pusher blade, thecable 27 being trained about the periphery of a sheave 28 rotatablysupported on the forward end of the box 16. A somewhat similar cable 29is secured at one end to the rear side of the pusher blade 22 forpulling the pusher blade toward the rear end of the box 16.

Two such cables 29 are employed as ordinarily the force for moving theblades 22 rearwardly in the body is greater than the force necessary formoving the blade toward the front end of the body. By so positioning andlocating the cables 29 on the pusher blade 22 an even tension may beemployed for pulling the pusher blade in a balanced condition toward therear of the body and moving with the pusher blade all of the materialdisposed within the body.

Sheaves 30 are rotatably supported on the outer side of the box overwhich the cables 27 and 29 may be separately and individually trained.

ln order to automatically and hydraulically move the blade 22longitudinally of the body 16 there is provided a cylinder 31 which isfixed on the outer side of the body 16 having a piston 32 therein whichis slidable in two directions in the cylinder 31 for moving the blade 22tothe front and rear end thereof.

The piston 32 has a longitudinally extending piston rod 34 securedthereon and the outer end of the piston rod 34 is provided with a crossshaft 35 exteriorly of the cylinder 31. The piston rod 34 engages thecross shaft 35 inten mediate the length thereof and sheaves 36 arerotatably secured to each outer end of the cross shaft for disposingthese sheaves transversely of the piston rod 34.

As the cables 27 and 29 are trained about the sheaves 36 and are securedat one end to the pusher blade, the other end of each of the cables isanchored by way of a spring 37 to the cylinder adjacent the end thereofopposite to the end from which the piston rod 34 extends.

As the piston 32 is hydraulically actuated there is provided a hydraulictank 46 on the truck 17 for hydraulic fluid and a pump 41 is mountedadjacent to the hydraulic tank 40 and communicated therewith with a pumpinline 42 so that the pump may take the fluid from the tank to thecylinder 31 where it is to be used for actuating the piston 32 in eithera forward or rearward direction. The direction of the movement of thepiston 32 is controlled by a valve 44 having a rotatable core 45therein, the core 45 being provided with a pair of outwardly openingpassages or openings 47 therein so that the pressure Vline 46 from thepump to the Valve will always be actuated regardless of the position ofthe core 45.

A tube 48 is connected between the valve 44 Vand the front end of thecylinder rwhile a similar tube 49 is connected between the rearv end ofthe cylinder and the valve 44fso that the direction ofk movement of `thepiston 32 depends` upon thev particular `position of the core 45 in thevalve 44.

An arm 50v isxedly secured to one end of the core 45 for properlyrotating the core to theposition selected andy the actuating arm 50 isdrawn in one direction by a spring 51 so that the pusherblade 22 will bemoved to the front end of the body 16 by themovement `of the piston inthe cylinder which will actuate the cables 27 and 29.

A control valve 52 is communicated with the valve 44 havingv a pressurecylinder'53 with a 4piston 54 slidable therein. The piston 54 has apiston rod 55 secured thereto and a` spring 56 will urge the piston 54downwardly in the cylinder 53.

An arm 57 is pivotally connected at one end thereof to the arm 50,intermediate the length of the arm 50 and spaced from the valve 44. Thearm 57 has a notched latch 58 therein which `includes a notch` 58 whichis releaseably engageable with akeeper `59 which is secured to the body16 adjacent to the valve 44. The keeper 59 is provided with an opening60 therethrough through which the arm 57 is freely slidable.

An elongated rod 61 is pivotally connected to the upper or outer end ofthe control arm 50 for manually moving the control arm t) and the core45 to a position where the hydraulic pressure developed in the pump isemployed` for moving the movable wall 22 toward the forward end of thebody 16.

A rear door 62 is mounted at the rear end of the body 16 for closing adischarge opening at the rear end of the box. The door 62 is secured .inits closed position by a lock 63 which is carried by the door and willkeep any material from being loosely scattered from the rear end of thetruck.

A clutch 64 is used for holding the pump in action or out of action andthis vclutch is heldin: action by a spring 65 which presses together theclutch plate thereof and the clutch plate may be disengaged when thepusher blade 22 is at the front end of the body 16 and no furthermovement is desired for the movable wall 22.

When the clutch 64 is disengaged the liquid is free for movement both inthe pump inline 42 and in the discharge pipe 66 which is connectedbetween the tank 40 andthe valve 44. The discharge pipe 66 may also beutilized at the time when the pump 41 is pumping pressurized fluid inthe pump inline 42 and the valve 44 is turned to a position where it isnot necessary to further move the piston 32 in the .cylinder 31.

In the use and operation ofthe refuse collecting and automatic dischargetruck the pusher blade will be moved to the forward end of the emptytruck and the refuse collected may be inserted into the body of thetruck through the openings. adjacent to the front end whereupon byrearward movement of the pusher blade toward the rear of the body thematerial contained within thebody will be packed between the front andrear walls thereof. When sutiicient pressure has been built up todischarge the material through the rear opening closed bythe rear door62, the rod 61 is pulled rearwardly to locate the arm-50 and thus`position the core of the valve 44 so' that the pressure developed by thepump 41 will be led to the rear end of the cylinder 31. When suflicientpressure hasbeen developed in the line 46, passage 47 and in thecylinder 53 the piston 54 will be urged upwardly for rocking the arm 57upwardly to disengage the notch 58 from its keeper 59. At this time thespring will turn the valve core 45 to a position for reversing themovement of the movable wall or pusher blade 22 to the forward end ofthe truck. In this way the movable wall will be automaticallyhydraulically operated to the forward end of the tank after the materialwithin the body has been fully packed or discharged out of the openingclosed by the rear door.

While the specific details of one embodiment of this invention have beenherein shown and described, the invention is not confined theretoaschanges and alterations may be made without departing from the spiritand scope thereof as defined in the appended claims.

I claim:

l. A refuse collecting and discharging means compris ing a mobile hopperbody, saidv body being closed at the front end thereof, a swingableclosure at the rear end of said body, a material ejecting wall movahlydisposed in said body, an elongated hydraulic cylinder disposedlongitudinally of said body, a piston slidable in said cylinder, aflexible connection between said piston and said wall whereby to movesaid wall in one direction upon forward movement of said piston, asecond flexible connection between said piston and said wall whereby tomove said wall in the opposite direction Lupon rearward movement of saidpiston, a fluid supply tank, a pipe connected at one end to said tank, apump connected at the suction side thereof to said pipe, a uid returnpipe connected at one end t0 said tank, a pair of pipe lines c0n nectedat one end thereof to each end of said cylinder, a multiple valveconnected to said first named pipe, said return pipe and said pair ofpipes, a valve adjusting lever connected to said valve, a springconnected to said lever for normally disposing said lever in a valveadjusting position to effect forward movement of said wall, a leverlocking member, and a hydraulic lever releasing member engageable withsaid locking member.

2. A refuse collecting and automatically discharging truck of the kinddescribed comprising a truck, a hollow body on Vsaid truck, said bodyhaving a refuse inlet opening adjacent the forward end and a refusedischarge opening adjacent the rear end thereof, a wall in said bodymovable longitudinally thereof, a hydraulic tank on said truck, ahydraulic cylinder on said truck, a piston slidable in said cylinder, areversible valve adjacentrsaid cylinder, a fluid pump connected betweensaid valve and said tank, pipe lines connected at the ends thereofbetween said valve and the opposite ends of said cylinder for movingsaid piston therein toward a selected end thereof, elongated flexiblemembers connected between said piston and said Wall for moving said wallupon movement of said piston, a control arm on said valve for actuationthereof, resilient means urging said control arm on said valve to aposition for hydraulically moving said movable wall to the forward endof said body, a notch on said arm, a keeper adjacent said valveengageable in said notch for holding said arm and valve in a position tourge said wall toward the rear end of said body, a second hydrauliccylinder in one of said pipe lines between said valve and one end ofsaid first mentioned cylinder, a piston in said latter cylinderengageable with said arm for disengaging said notch from said keeperwhereby to reverse said valve by the force of said resilient means andurge saidwall toward the front end of said body.

References Cited in the tile of this patent UNITED STATES PATENTS1,961,587 Hulley et al. June 5, 1934 2,408,284 Anthony Sept. `24, 19462,480,527 Wachter Aug. 30, 1949 2,541,538 Newell Feb. 13, 1951 2,644,594Komuchar et al July 7, 1953 2,694,499 Mohrlang et al Nov. 16, 1954FOREIGN PATENTS 323,812 Italy Ian. 9, 1935

